<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    /*子孙后代选择器*/

    /*body div div p{*/
    /*  color: red;*/
    /*}*/
    /*
    子元素选择器
     */
    body>p{
      color: red;
    }

  </style>
</head>
<body>
<p>p1</p>
<div><p>p2</p></div>
<div>
  <div><p>p3</p></div>
</div>
<div>
  <div><p>p4</p></div>
</div>
</body>
</html>